White Noise
Noise whose power spectral density is constant regardless of frequency. The sound produced when the effect of "snow" on a TV set is not a good example of white noise. Strictly white noise can not exist as a spectral density identical for all frequencies lead to a variance, measured by the AUC, infinite (and therefore infinite energy). It is therefore of limited white noise to a band.
BSC
Transmission procedure Synchronous blocks of 8 bits in an IBM environment.
Office
All techniques and methods designed to automate the office activities and mainly the processing and communication of speech, writing and image.
Bus
Device not completed simultaneously intended to ensure the transfer of information between different subsets of a system computer according to physical specifications and common logic.
English: Bus.
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